libxml2/doc/html/libxml-xpathinternals.html

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  32
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  34
  35 #define     <a href="libxml-xpathInternals.html#xmlXPathSetError">xmlXPathSetError</a>                (ctxt, err)
  36 #define     <a href="libxml-xpathInternals.html#xmlXPathSetArityError">xmlXPathSetArityError</a>           (ctxt)
  37 #define     <a href="libxml-xpathInternals.html#xmlXPathSetTypeError">xmlXPathSetTypeError</a>            (ctxt)
  38 #define     <a href="libxml-xpathInternals.html#xmlXPathGetError">xmlXPathGetError</a>                (ctxt)
  39 #define     <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>              (ctxt)
  40 #define     <a href="libxml-xpathInternals.html#xmlXPathGetDocument">xmlXPathGetDocument</a>             (ctxt)
  41 #define     <a href="libxml-xpathInternals.html#xmlXPathGetContextNode">xmlXPathGetContextNode</a>          (ctxt)
  42 int         <a href="libxml-xpathInternals.html#xmlXPathPopBoolean">xmlXPathPopBoolean</a>              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
  43 <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK>      <a href="libxml-xpathInternals.html#xmlXPathPopNumber">xmlXPathPopNumber</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
  44 <a href="libxml-tree.html#xmlChar">xmlChar</a>*    <a href="libxml-xpathInternals.html#xmlXPathPopString">xmlXPathPopString</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
  45 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathPopNodeSet">xmlXPathPopNodeSet</a>            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
  46 void*       <a href="libxml-xpathInternals.html#xmlXPathPopExternal">xmlXPathPopExternal</a>             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
  47 #define     <a href="libxml-xpathInternals.html#xmlXPathReturnBoolean">xmlXPathReturnBoolean</a>           (ctxt, val)
  48 #define     <a href="libxml-xpathInternals.html#xmlXPathReturnTrue">xmlXPathReturnTrue</a>              (ctxt)
  49 #define     <a href="libxml-xpathInternals.html#xmlXPathReturnFalse">xmlXPathReturnFalse</a>             (ctxt)
  50 #define     <a href="libxml-xpathInternals.html#xmlXPathReturnNumber">xmlXPathReturnNumber</a>            (ctxt, val)
  51 #define     <a href="libxml-xpathInternals.html#xmlXPathReturnString">xmlXPathReturnString</a>            (ctxt, str)
  52 #define     <a href="libxml-xpathInternals.html#xmlXPathReturnEmptyString">xmlXPathReturnEmptyString</a>       (ctxt)
  53 #define     <a href="libxml-xpathInternals.html#xmlXPathReturnNodeSet">xmlXPathReturnNodeSet</a>           (ctxt, ns)
  54 #define     <a href="libxml-xpathInternals.html#xmlXPathReturnEmptyNodeSet">xmlXPathReturnEmptyNodeSet</a>      (ctxt)
  55 #define     <a href="libxml-xpathInternals.html#xmlXPathReturnExternal">xmlXPathReturnExternal</a>          (ctxt, val)
  56 #define     <a href="libxml-xpathInternals.html#xmlXPathStackIsNodeSet">xmlXPathStackIsNodeSet</a>          (ctxt)
  57 #define     <a href="libxml-xpathInternals.html#xmlXPathStackIsExternal">xmlXPathStackIsExternal</a>         (ctxt)
  58 #define     <a href="libxml-xpathInternals.html#xmlXPathEmptyNodeSet">xmlXPathEmptyNodeSet</a>            (ns)
  59 #define     <a href="libxml-xpathInternals.html#CHECK-ERROR-CAPS">CHECK_ERROR</a>
  60 #define     <a href="libxml-xpathInternals.html#CHECK-ERROR0-CAPS">CHECK_ERROR0</a>
  61 #define     <a href="libxml-xpathInternals.html#XP-ERROR-CAPS">XP_ERROR</a>                        (X)
  62 #define     <a href="libxml-xpathInternals.html#XP-ERROR0-CAPS">XP_ERROR0</a>                       (X)
  63 #define     <a href="libxml-xpathInternals.html#CHECK-TYPE-CAPS">CHECK_TYPE</a>                      (typeval)
  64 #define     <a href="libxml-xpathInternals.html#CHECK-TYPE0-CAPS">CHECK_TYPE0</a>                     (typeval)
  65 #define     <a href="libxml-xpathInternals.html#CHECK-ARITY-CAPS">CHECK_ARITY</a>                     (x)
  66 #define     <a href="libxml-xpathInternals.html#CAST-TO-STRING-CAPS">CAST_TO_STRING</a>
  67 #define     <a href="libxml-xpathInternals.html#CAST-TO-NUMBER-CAPS">CAST_TO_NUMBER</a>
  68 #define     <a href="libxml-xpathInternals.html#CAST-TO-BOOLEAN-CAPS">CAST_TO_BOOLEAN</a>
  69 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> (<a href="libxml-xpathInternals.html#xmlXPathVariableLookupFunc">*xmlXPathVariableLookupFunc</a>)
  70                                             (void *ctxt,
  71                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
  72                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);
  73 void        <a href="libxml-xpathInternals.html#xmlXPathRegisterVariableLookup">xmlXPathRegisterVariableLookup</a>  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
  74                                              <a href="libxml-xpathInternals.html#xmlXPathVariableLookupFunc">xmlXPathVariableLookupFunc</a> f,
  75                                              void *data);
  76 <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> (<a href="libxml-xpathInternals.html#xmlXPathFuncLookupFunc">*xmlXPathFuncLookupFunc</a>)  (void *ctxt,
  77                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
  78                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);
  79 void        <a href="libxml-xpathInternals.html#xmlXPathRegisterFuncLookup">xmlXPathRegisterFuncLookup</a>      (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
  80                                              <a href="libxml-xpathInternals.html#xmlXPathFuncLookupFunc">xmlXPathFuncLookupFunc</a> f,
  81                                              void *funcCtxt);
  82 void        <a href="libxml-xpathInternals.html#xmlXPatherror">xmlXPatherror</a>                   (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
  83                                              const char *file,
  84                                              int line,
  85                                              int no);
  86 void        <a href="libxml-xpathInternals.html#xmlXPathDebugDumpObject">xmlXPathDebugDumpObject</a>         (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="FILE-CAPS">FILE</GTKDOCLINK> *output,
  87                                              <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> cur,
  88                                              int depth);
  89 void        <a href="libxml-xpathInternals.html#xmlXPathDebugDumpCompExpr">xmlXPathDebugDumpCompExpr</a>       (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="FILE-CAPS">FILE</GTKDOCLINK> *output,
  90                                              <a href="libxml-xpath.html#xmlXPathCompExprPtr">xmlXPathCompExprPtr</a> comp,
  91                                              int depth);
  92 int         <a href="libxml-xpathInternals.html#xmlXPathNodeSetContains">xmlXPathNodeSetContains</a>         (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
  93                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
  94 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathDifference">xmlXPathDifference</a>            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
  95                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
  96 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathIntersection">xmlXPathIntersection</a>          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
  97                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
  98 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathDistinctSorted">xmlXPathDistinctSorted</a>        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes);
  99 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathDistinct">xmlXPathDistinct</a>              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes);
 100 int         <a href="libxml-xpathInternals.html#xmlXPathHasSameNodes">xmlXPathHasSameNodes</a>            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 101                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
 102 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNodeLeadingSorted">xmlXPathNodeLeadingSorted</a>     (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
 103                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);
 104 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathLeadingSorted">xmlXPathLeadingSorted</a>         (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 105                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
 106 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNodeLeading">xmlXPathNodeLeading</a>           (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
 107                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);
 108 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathLeading">xmlXPathLeading</a>               (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 109                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
 110 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNodeTrailingSorted">xmlXPathNodeTrailingSorted</a>    (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
 111                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);
 112 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathTrailingSorted">xmlXPathTrailingSorted</a>        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 113                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
 114 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNodeTrailing">xmlXPathNodeTrailing</a>          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
 115                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);
 116 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathTrailing">xmlXPathTrailing</a>              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 117                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);
 118 int         <a href="libxml-xpathInternals.html#xmlXPathRegisterNs">xmlXPathRegisterNs</a>              (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 119                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *prefix,
 120                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);
 121 const <a href="libxml-tree.html#xmlChar">xmlChar</a>* <a href="libxml-xpathInternals.html#xmlXPathNsLookup">xmlXPathNsLookup</a>             (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 122                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *prefix);
 123 void        <a href="libxml-xpathInternals.html#xmlXPathRegisteredNsCleanup">xmlXPathRegisteredNsCleanup</a>     (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);
 124 int         <a href="libxml-xpathInternals.html#xmlXPathRegisterFunc">xmlXPathRegisterFunc</a>            (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 125                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 126                                              <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> f);
 127 int         <a href="libxml-xpathInternals.html#xmlXPathRegisterFuncNS">xmlXPathRegisterFuncNS</a>          (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 128                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 129                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri,
 130                                              <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> f);
 131 int         <a href="libxml-xpathInternals.html#xmlXPathRegisterVariable">xmlXPathRegisterVariable</a>        (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 132                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 133                                              <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);
 134 int         <a href="libxml-xpathInternals.html#xmlXPathRegisterVariableNS">xmlXPathRegisterVariableNS</a>      (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 135                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 136                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri,
 137                                              <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);
 138 <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> <a href="libxml-xpathInternals.html#xmlXPathFunctionLookup">xmlXPathFunctionLookup</a>     (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 139                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);
 140 <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> <a href="libxml-xpathInternals.html#xmlXPathFunctionLookupNS">xmlXPathFunctionLookupNS</a>   (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 141                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 142                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);
 143 void        <a href="libxml-xpathInternals.html#xmlXPathRegisteredFuncsCleanup">xmlXPathRegisteredFuncsCleanup</a>  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);
 144 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathVariableLookup">xmlXPathVariableLookup</a>    (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 145                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);
 146 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathVariableLookupNS">xmlXPathVariableLookupNS</a>  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 147                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 148                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);
 149 void        <a href="libxml-xpathInternals.html#xmlXPathRegisteredVariablesCleanup">xmlXPathRegisteredVariablesCleanup</a>
 150                                             (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);
 151 <a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewParserContext">xmlXPathNewParserContext</a>
 152                                             (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *str,
 153                                              <a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);
 154 void        <a href="libxml-xpathInternals.html#xmlXPathFreeParserContext">xmlXPathFreeParserContext</a>       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 155 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#valuePop">valuePop</a>                  (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 156 int         <a href="libxml-xpathInternals.html#valuePush">valuePush</a>                       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 157                                              <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);
 158 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewString">xmlXPathNewString</a>         (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *val);
 159 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewCString">xmlXPathNewCString</a>        (const char *val);
 160 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathWrapString">xmlXPathWrapString</a>        (<a href="libxml-tree.html#xmlChar">xmlChar</a> *val);
 161 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathWrapCString">xmlXPathWrapCString</a>       (char *val);
 162 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewFloat">xmlXPathNewFloat</a>          (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK> val);
 163 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewBoolean">xmlXPathNewBoolean</a>        (int val);
 164 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewNodeSet">xmlXPathNewNodeSet</a>        (<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
 165 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewValueTree">xmlXPathNewValueTree</a>      (<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
 166 void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetAdd">xmlXPathNodeSetAdd</a>              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 167                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
 168 void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetAddUnique">xmlXPathNodeSetAddUnique</a>        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 169                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
 170 void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetAddNs">xmlXPathNodeSetAddNs</a>            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 171                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node,
 172                                              <a href="libxml-tree.html#xmlNsPtr">xmlNsPtr</a> ns);
 173 void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetSort">xmlXPathNodeSetSort</a>             (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> set);
 174 void        <a href="libxml-xpathInternals.html#xmlXPathRoot">xmlXPathRoot</a>                    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 175 void        <a href="libxml-xpathInternals.html#xmlXPathEvalExpr">xmlXPathEvalExpr</a>                (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 176 <a href="libxml-tree.html#xmlChar">xmlChar</a>*    <a href="libxml-xpathInternals.html#xmlXPathParseName">xmlXPathParseName</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 177 <a href="libxml-tree.html#xmlChar">xmlChar</a>*    <a href="libxml-xpathInternals.html#xmlXPathParseNCName">xmlXPathParseNCName</a>             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 178 <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK>      <a href="libxml-xpathInternals.html#xmlXPathStringEvalNumber">xmlXPathStringEvalNumber</a>        (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *str);
 179 int         <a href="libxml-xpathInternals.html#xmlXPathEvaluatePredicateResult">xmlXPathEvaluatePredicateResult</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 180                                              <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> res);
 181 void        <a href="libxml-xpathInternals.html#xmlXPathRegisterAllFunctions">xmlXPathRegisterAllFunctions</a>    (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);
 182 <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNodeSetMerge">xmlXPathNodeSetMerge</a>          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val1,
 183                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val2);
 184 void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetDel">xmlXPathNodeSetDel</a>              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 185                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);
 186 void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetRemove">xmlXPathNodeSetRemove</a>           (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 187                                              int val);
 188 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathNewNodeSetList">xmlXPathNewNodeSetList</a>    (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val);
 189 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathWrapNodeSet">xmlXPathWrapNodeSet</a>       (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val);
 190 <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> <a href="libxml-xpathInternals.html#xmlXPathWrapExternal">xmlXPathWrapExternal</a>      (void *val);
 191 int         <a href="libxml-xpathInternals.html#xmlXPathEqualValues">xmlXPathEqualValues</a>             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 192 int         <a href="libxml-xpathInternals.html#xmlXPathNotEqualValues">xmlXPathNotEqualValues</a>          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 193 int         <a href="libxml-xpathInternals.html#xmlXPathCompareValues">xmlXPathCompareValues</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 194                                              int inf,
 195                                              int strict);
 196 void        <a href="libxml-xpathInternals.html#xmlXPathValueFlipSign">xmlXPathValueFlipSign</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 197 void        <a href="libxml-xpathInternals.html#xmlXPathAddValues">xmlXPathAddValues</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 198 void        <a href="libxml-xpathInternals.html#xmlXPathSubValues">xmlXPathSubValues</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 199 void        <a href="libxml-xpathInternals.html#xmlXPathMultValues">xmlXPathMultValues</a>              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 200 void        <a href="libxml-xpathInternals.html#xmlXPathDivValues">xmlXPathDivValues</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 201 void        <a href="libxml-xpathInternals.html#xmlXPathModValues">xmlXPathModValues</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);
 202 int         <a href="libxml-xpathInternals.html#xmlXPathIsNodeType">xmlXPathIsNodeType</a>              (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);
 203 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextSelf">xmlXPathNextSelf</a>                (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 204                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 205 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextChild">xmlXPathNextChild</a>               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 206                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 207 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextDescendant">xmlXPathNextDescendant</a>          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 208                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 209 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextDescendantOrSelf">xmlXPathNextDescendantOrSelf</a>    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 210                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 211 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextParent">xmlXPathNextParent</a>              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 212                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 213 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextAncestorOrSelf">xmlXPathNextAncestorOrSelf</a>      (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 214                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 215 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextFollowingSibling">xmlXPathNextFollowingSibling</a>    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 216                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 217 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextFollowing">xmlXPathNextFollowing</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 218                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 219 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextNamespace">xmlXPathNextNamespace</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 220                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 221 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextAttribute">xmlXPathNextAttribute</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 222                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 223 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextPreceding">xmlXPathNextPreceding</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 224                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 225 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextAncestor">xmlXPathNextAncestor</a>            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 226                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 227 <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  <a href="libxml-xpathInternals.html#xmlXPathNextPrecedingSibling">xmlXPathNextPrecedingSibling</a>    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 228                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);
 229 void        <a href="libxml-xpathInternals.html#xmlXPathLastFunction">xmlXPathLastFunction</a>            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 230                                              int nargs);
 231 void        <a href="libxml-xpathInternals.html#xmlXPathPositionFunction">xmlXPathPositionFunction</a>        (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 232                                              int nargs);
 233 void        <a href="libxml-xpathInternals.html#xmlXPathCountFunction">xmlXPathCountFunction</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 234                                              int nargs);
 235 void        <a href="libxml-xpathInternals.html#xmlXPathIdFunction">xmlXPathIdFunction</a>              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 236                                              int nargs);
 237 void        <a href="libxml-xpathInternals.html#xmlXPathLocalNameFunction">xmlXPathLocalNameFunction</a>       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 238                                              int nargs);
 239 void        <a href="libxml-xpathInternals.html#xmlXPathNamespaceURIFunction">xmlXPathNamespaceURIFunction</a>    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 240                                              int nargs);
 241 void        <a href="libxml-xpathInternals.html#xmlXPathStringFunction">xmlXPathStringFunction</a>          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 242                                              int nargs);
 243 void        <a href="libxml-xpathInternals.html#xmlXPathStringLengthFunction">xmlXPathStringLengthFunction</a>    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 244                                              int nargs);
 245 void        <a href="libxml-xpathInternals.html#xmlXPathConcatFunction">xmlXPathConcatFunction</a>          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 246                                              int nargs);
 247 void        <a href="libxml-xpathInternals.html#xmlXPathContainsFunction">xmlXPathContainsFunction</a>        (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 248                                              int nargs);
 249 void        <a href="libxml-xpathInternals.html#xmlXPathStartsWithFunction">xmlXPathStartsWithFunction</a>      (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 250                                              int nargs);
 251 void        <a href="libxml-xpathInternals.html#xmlXPathSubstringFunction">xmlXPathSubstringFunction</a>       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 252                                              int nargs);
 253 void        <a href="libxml-xpathInternals.html#xmlXPathSubstringBeforeFunction">xmlXPathSubstringBeforeFunction</a> (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 254                                              int nargs);
 255 void        <a href="libxml-xpathInternals.html#xmlXPathSubstringAfterFunction">xmlXPathSubstringAfterFunction</a>  (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 256                                              int nargs);
 257 void        <a href="libxml-xpathInternals.html#xmlXPathNormalizeFunction">xmlXPathNormalizeFunction</a>       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 258                                              int nargs);
 259 void        <a href="libxml-xpathInternals.html#xmlXPathTranslateFunction">xmlXPathTranslateFunction</a>       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 260                                              int nargs);
 261 void        <a href="libxml-xpathInternals.html#xmlXPathNotFunction">xmlXPathNotFunction</a>             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 262                                              int nargs);
 263 void        <a href="libxml-xpathInternals.html#xmlXPathTrueFunction">xmlXPathTrueFunction</a>            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 264                                              int nargs);
 265 void        <a href="libxml-xpathInternals.html#xmlXPathFalseFunction">xmlXPathFalseFunction</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 266                                              int nargs);
 267 void        <a href="libxml-xpathInternals.html#xmlXPathLangFunction">xmlXPathLangFunction</a>            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 268                                              int nargs);
 269 void        <a href="libxml-xpathInternals.html#xmlXPathNumberFunction">xmlXPathNumberFunction</a>          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 270                                              int nargs);
 271 void        <a href="libxml-xpathInternals.html#xmlXPathSumFunction">xmlXPathSumFunction</a>             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 272                                              int nargs);
 273 void        <a href="libxml-xpathInternals.html#xmlXPathFloorFunction">xmlXPathFloorFunction</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 274                                              int nargs);
 275 void        <a href="libxml-xpathInternals.html#xmlXPathCeilingFunction">xmlXPathCeilingFunction</a>         (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 276                                              int nargs);
 277 void        <a href="libxml-xpathInternals.html#xmlXPathRoundFunction">xmlXPathRoundFunction</a>           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 278                                              int nargs);
 279 void        <a href="libxml-xpathInternals.html#xmlXPathBooleanFunction">xmlXPathBooleanFunction</a>         (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 280                                              int nargs);
 281 void        <a href="libxml-xpathInternals.html#xmlXPathNodeSetFreeNs">xmlXPathNodeSetFreeNs</a>           (<a href="libxml-tree.html#xmlNsPtr">xmlNsPtr</a> ns);
 282 </pre></div><div class="refsect1" lang="en"><h2>Description</h2><p>
 283
 284 </p></div><div class="refsect1" lang="en"><h2>Details</h2><div class="refsect2" lang="en"><h3><a name="xmlXPathSetError"></a>xmlXPathSetError()</h3><pre class="programlisting">#define     xmlXPathSetError(ctxt, err)</pre><p>
 285 Raises an error.</p><p>
 286
 287 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 288 </td></tr><tr><td><span class="term"><i><tt>err</tt></i> :</span></td><td>  an xmlXPathError code
 289 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSetArityError"></a>xmlXPathSetArityError()</h3><pre class="programlisting">#define     xmlXPathSetArityError(ctxt)</pre><p>
 290 Raises an XPATH_INVALID_ARITY error.</p><p>
 291
 292 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 293 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSetTypeError"></a>xmlXPathSetTypeError()</h3><pre class="programlisting">#define     xmlXPathSetTypeError(ctxt)</pre><p>
 294 Raises an XPATH_INVALID_TYPE error.</p><p>
 295
 296 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 297 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathGetError"></a>xmlXPathGetError()</h3><pre class="programlisting">#define xmlXPathGetError(ctxt)      ((ctxt)-&gt;error)
 298 </pre><p>
 299 Get the error code of an XPath context.</p><p>
 300
 301 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 302 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathCheckError"></a>xmlXPathCheckError()</h3><pre class="programlisting">#define xmlXPathCheckError(ctxt)  ((ctxt)-&gt;error != XPATH_EXPRESSION_OK)
 303 </pre><p>
 304 Check if an XPath error was raised.</p><p>
 305
 306 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 307 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathGetDocument"></a>xmlXPathGetDocument()</h3><pre class="programlisting">#define xmlXPathGetDocument(ctxt)   ((ctxt)-&gt;context-&gt;doc)
 308 </pre><p>
 309 Get the document of an XPath context.</p><p>
 310
 311 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 312 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathGetContextNode"></a>xmlXPathGetContextNode()</h3><pre class="programlisting">#define xmlXPathGetContextNode(ctxt)  ((ctxt)-&gt;context-&gt;node)
 313 </pre><p>
 314 Get the context node of an XPath context.</p><p>
 315
 316 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td> an XPath parser context
 317 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPopBoolean"></a>xmlXPathPopBoolean ()</h3><pre class="programlisting">int         xmlXPathPopBoolean              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 318 Pops a boolean from the stack, handling conversion if needed.
 319 Check error with <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>.</p><p>
 320
 321 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 322 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the boolean
 323 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPopNumber"></a>xmlXPathPopNumber ()</h3><pre class="programlisting"><GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK>      xmlXPathPopNumber               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 324 Pops a number from the stack, handling conversion if needed.
 325 Check error with <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>.</p><p>
 326
 327 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 328 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the number
 329 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPopString"></a>xmlXPathPopString ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlChar">xmlChar</a>*    xmlXPathPopString               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 330 Pops a string from the stack, handling conversion if needed.
 331 Check error with <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>.</p><p>
 332
 333 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 334 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the string
 335 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPopNodeSet"></a>xmlXPathPopNodeSet ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathPopNodeSet            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 336 Pops a node-set from the stack, handling conversion if needed.
 337 Check error with <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>.</p><p>
 338
 339 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 340 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the node-set
 341 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPopExternal"></a>xmlXPathPopExternal ()</h3><pre class="programlisting">void*       xmlXPathPopExternal             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 342 Pops an external object from the stack, handling conversion if needed.
 343 Check error with <a href="libxml-xpathInternals.html#xmlXPathCheckError">xmlXPathCheckError</a>.</p><p>
 344
 345 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 346 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnBoolean"></a>xmlXPathReturnBoolean()</h3><pre class="programlisting">#define     xmlXPathReturnBoolean(ctxt, val)</pre><p>
 347 Pushes the boolean <i><tt>val</tt></i> on the context stack.</p><p>
 348
 349 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 350 </td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  a boolean
 351 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnTrue"></a>xmlXPathReturnTrue()</h3><pre class="programlisting">#define xmlXPathReturnTrue(ctxt)   xmlXPathReturnBoolean((ctxt), 1)
 352 </pre><p>
 353 Pushes true on the context stack.</p><p>
 354
 355 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 356 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnFalse"></a>xmlXPathReturnFalse()</h3><pre class="programlisting">#define xmlXPathReturnFalse(ctxt)  xmlXPathReturnBoolean((ctxt), 0)
 357 </pre><p>
 358 Pushes false on the context stack.</p><p>
 359
 360 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 361 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnNumber"></a>xmlXPathReturnNumber()</h3><pre class="programlisting">#define     xmlXPathReturnNumber(ctxt, val)</pre><p>
 362 Pushes the double <i><tt>val</tt></i> on the context stack.</p><p>
 363
 364 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 365 </td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  a double
 366 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnString"></a>xmlXPathReturnString()</h3><pre class="programlisting">#define     xmlXPathReturnString(ctxt, str)</pre><p>
 367 Pushes the string <i><tt>str</tt></i> on the context stack.</p><p>
 368
 369 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 370 </td></tr><tr><td><span class="term"><i><tt>str</tt></i> :</span></td><td>  a string
 371 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnEmptyString"></a>xmlXPathReturnEmptyString()</h3><pre class="programlisting">#define     xmlXPathReturnEmptyString(ctxt)</pre><p>
 372 Pushes an empty string on the stack.</p><p>
 373
 374 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 375 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnNodeSet"></a>xmlXPathReturnNodeSet()</h3><pre class="programlisting">#define     xmlXPathReturnNodeSet(ctxt, ns)</pre><p>
 376 Pushes the node-set <i><tt>ns</tt></i> on the context stack.</p><p>
 377
 378 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 379 </td></tr><tr><td><span class="term"><i><tt>ns</tt></i> :</span></td><td>  a node-set
 380 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnEmptyNodeSet"></a>xmlXPathReturnEmptyNodeSet()</h3><pre class="programlisting">#define     xmlXPathReturnEmptyNodeSet(ctxt)</pre><p>
 381 Pushes an empty node-set on the context stack.</p><p>
 382
 383 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 384 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathReturnExternal"></a>xmlXPathReturnExternal()</h3><pre class="programlisting">#define     xmlXPathReturnExternal(ctxt, val)</pre><p>
 385 Pushes user data on the context stack.</p><p>
 386
 387 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath parser context
 388 </td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  user data
 389 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStackIsNodeSet"></a>xmlXPathStackIsNodeSet()</h3><pre class="programlisting">#define     xmlXPathStackIsNodeSet(ctxt)</pre><p>
 390 Check if the current value on the XPath stack is a node set or
 391 an XSLT value tree.</p><p>
 392
 393 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td> an XPath parser context
 394 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStackIsExternal"></a>xmlXPathStackIsExternal()</h3><pre class="programlisting">#define     xmlXPathStackIsExternal(ctxt)</pre><p>
 395 Checks if the current value on the XPath stack is an external
 396 object.</p><p>
 397
 398 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td> an XPath parser context
 399 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathEmptyNodeSet"></a>xmlXPathEmptyNodeSet()</h3><pre class="programlisting">#define     xmlXPathEmptyNodeSet(ns)</pre><p>
 400 Empties a node-set.</p><p>
 401
 402 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ns</tt></i> :</span></td><td>  a node-set
 403 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CHECK-ERROR-CAPS"></a>CHECK_ERROR</h3><pre class="programlisting">#define     CHECK_ERROR</pre><p>
 404 Macro to return from the function if an XPath error was detected.</p><p>
 405
 406 </p></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CHECK-ERROR0-CAPS"></a>CHECK_ERROR0</h3><pre class="programlisting">#define     CHECK_ERROR0</pre><p>
 407 Macro to return 0 from the function if an XPath error was detected.</p><p>
 408
 409 </p></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="XP-ERROR-CAPS"></a>XP_ERROR()</h3><pre class="programlisting">#define     XP_ERROR(X)</pre><p>
 410 Macro to raise an XPath error and return.</p><p>
 411
 412 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>X</tt></i> :</span></td><td>  the error code
 413 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="XP-ERROR0-CAPS"></a>XP_ERROR0()</h3><pre class="programlisting">#define     XP_ERROR0(X)</pre><p>
 414 Macro to raise an XPath error and return 0.</p><p>
 415
 416 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>X</tt></i> :</span></td><td>  the error code
 417 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CHECK-TYPE-CAPS"></a>CHECK_TYPE()</h3><pre class="programlisting">#define     CHECK_TYPE(typeval)</pre><p>
 418 Macro to check that the value on top of the XPath stack is of a given
 419 type.</p><p>
 420
 421 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>typeval</tt></i> :</span></td><td>  the XPath type
 422 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CHECK-TYPE0-CAPS"></a>CHECK_TYPE0()</h3><pre class="programlisting">#define     CHECK_TYPE0(typeval)</pre><p>
 423 Macro to check that the value on top of the XPath stack is of a given
 424 type. Return(0) in case of failure</p><p>
 425
 426 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>typeval</tt></i> :</span></td><td>  the XPath type
 427 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CHECK-ARITY-CAPS"></a>CHECK_ARITY()</h3><pre class="programlisting">#define     CHECK_ARITY(x)</pre><p>
 428 Macro to check that the number of args passed to an XPath function matches.</p><p>
 429
 430 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>x</tt></i> :</span></td><td>  the number of expected args
 431 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CAST-TO-STRING-CAPS"></a>CAST_TO_STRING</h3><pre class="programlisting">#define     CAST_TO_STRING</pre><p>
 432 Macro to try to cast the value on the top of the XPath stack to a string.</p><p>
 433
 434 </p></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CAST-TO-NUMBER-CAPS"></a>CAST_TO_NUMBER</h3><pre class="programlisting">#define     CAST_TO_NUMBER</pre><p>
 435 Macro to try to cast the value on the top of the XPath stack to a number.</p><p>
 436
 437 </p></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="CAST-TO-BOOLEAN-CAPS"></a>CAST_TO_BOOLEAN</h3><pre class="programlisting">#define     CAST_TO_BOOLEAN</pre><p>
 438 Macro to try to cast the value on the top of the XPath stack to a boolean.</p><p>
 439
 440 </p></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathVariableLookupFunc"></a>xmlXPathVariableLookupFunc ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> (*xmlXPathVariableLookupFunc)
 441                                             (void *ctxt,
 442                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 443                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);</pre><p>
 444 Prototype for callbacks used to plug variable lookup in the XPath
 445 engine.</p><p>
 446
 447 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath context
 448 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  name of the variable
 449 </td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the namespace name hosting this variable
 450 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the XPath object value or NULL if not found.
 451 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterVariableLookup"></a>xmlXPathRegisterVariableLookup ()</h3><pre class="programlisting">void        xmlXPathRegisterVariableLookup  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 452                                              <a href="libxml-xpathInternals.html#xmlXPathVariableLookupFunc">xmlXPathVariableLookupFunc</a> f,
 453                                              void *data);</pre><p>
 454 register an external mechanism to do variable lookup</p><p>
 455
 456 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 457 </td></tr><tr><td><span class="term"><i><tt>f</tt></i> :</span></td><td>  the lookup function
 458 </td></tr><tr><td><span class="term"><i><tt>data</tt></i> :</span></td><td>  the lookup data
 459 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFuncLookupFunc"></a>xmlXPathFuncLookupFunc ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> (*xmlXPathFuncLookupFunc)  (void *ctxt,
 460                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 461                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);</pre><p>
 462 Prototype for callbacks used to plug function lookup in the XPath
 463 engine.</p><p>
 464
 465 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath context
 466 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  name of the function
 467 </td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the namespace name hosting this function
 468 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the XPath function or NULL if not found.
 469 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterFuncLookup"></a>xmlXPathRegisterFuncLookup ()</h3><pre class="programlisting">void        xmlXPathRegisterFuncLookup      (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 470                                              <a href="libxml-xpathInternals.html#xmlXPathFuncLookupFunc">xmlXPathFuncLookupFunc</a> f,
 471                                              void *funcCtxt);</pre><p>
 472 Registers an external mechanism to do function lookup.</p><p>
 473
 474 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 475 </td></tr><tr><td><span class="term"><i><tt>f</tt></i> :</span></td><td>  the lookup function
 476 </td></tr><tr><td><span class="term"><i><tt>funcCtxt</tt></i> :</span></td><td>  the lookup data
 477 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPatherror"></a>xmlXPatherror ()</h3><pre class="programlisting">void        xmlXPatherror                   (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 478                                              const char *file,
 479                                              int line,
 480                                              int no);</pre><p>
 481 Formats an error message.</p><p>
 482
 483 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 484 </td></tr><tr><td><span class="term"><i><tt>file</tt></i> :</span></td><td>  the file name
 485 </td></tr><tr><td><span class="term"><i><tt>line</tt></i> :</span></td><td>  the line number
 486 </td></tr><tr><td><span class="term"><i><tt>no</tt></i> :</span></td><td>  the error number
 487 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDebugDumpObject"></a>xmlXPathDebugDumpObject ()</h3><pre class="programlisting">void        xmlXPathDebugDumpObject         (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="FILE-CAPS">FILE</GTKDOCLINK> *output,
 488                                              <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> cur,
 489                                              int depth);</pre><p>
 490 Dump the content of the object for debugging purposes</p><p>
 491
 492 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>output</tt></i> :</span></td><td>  the FILE * to dump the output
 493 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the object to inspect
 494 </td></tr><tr><td><span class="term"><i><tt>depth</tt></i> :</span></td><td>  indentation level
 495 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDebugDumpCompExpr"></a>xmlXPathDebugDumpCompExpr ()</h3><pre class="programlisting">void        xmlXPathDebugDumpCompExpr       (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="FILE-CAPS">FILE</GTKDOCLINK> *output,
 496                                              <a href="libxml-xpath.html#xmlXPathCompExprPtr">xmlXPathCompExprPtr</a> comp,
 497                                              int depth);</pre><p>
 498 Dumps the tree of the compiled XPath expression.</p><p>
 499
 500 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>output</tt></i> :</span></td><td>  the FILE * for the output
 501 </td></tr><tr><td><span class="term"><i><tt>comp</tt></i> :</span></td><td>  the precompiled XPath expression
 502 </td></tr><tr><td><span class="term"><i><tt>depth</tt></i> :</span></td><td>  the indentation level.
 503 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetContains"></a>xmlXPathNodeSetContains ()</h3><pre class="programlisting">int         xmlXPathNodeSetContains         (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 504                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
 505 checks whether <i><tt>cur</tt></i> contains <i><tt>val</tt></i></p><p>
 506
 507 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the node-set
 508 </td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the node
 509 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>true (1) if <i><tt>cur</tt></i> contains <i><tt>val</tt></i>, false (0) otherwise
 510 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDifference"></a>xmlXPathDifference ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathDifference            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 511                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
 512 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="difference">difference</GTKDOCLINK>() function:
 513    node-set set:difference (node-set, node-set)</p><p>
 514
 515 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set
 516 </td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set
 517 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the difference between the two node sets, or nodes1 if
 518         nodes2 is empty
 519 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathIntersection"></a>xmlXPathIntersection ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathIntersection          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 520                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
 521 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="intersection">intersection</GTKDOCLINK>() function:
 522    node-set set:intersection (node-set, node-set)</p><p>
 523
 524 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set
 525 </td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set
 526 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>a node set comprising the nodes that are within both the
 527         node sets passed as arguments
 528 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDistinctSorted"></a>xmlXPathDistinctSorted ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathDistinctSorted        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes);</pre><p>
 529 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="distinct">distinct</GTKDOCLINK>() function:
 530    node-set set:distinct (node-set)</p><p>
 531
 532 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td>  a node-set, sorted by document order
 533 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>a subset of the nodes contained in <i><tt>nodes</tt></i>, or <i><tt>nodes</tt></i> if
 534         it is empty
 535 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDistinct"></a>xmlXPathDistinct ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathDistinct              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes);</pre><p>
 536 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="distinct">distinct</GTKDOCLINK>() function:
 537    node-set set:distinct (node-set)
 538 <i><tt>nodes</tt></i> is sorted by document order, then <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="exslSetsDistinctSorted">exslSetsDistinctSorted</GTKDOCLINK>
 539 is called with the sorted node-set</p><p>
 540
 541 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td>  a node-set
 542 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>a subset of the nodes contained in <i><tt>nodes</tt></i>, or <i><tt>nodes</tt></i> if
 543         it is empty
 544 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathHasSameNodes"></a>xmlXPathHasSameNodes ()</h3><pre class="programlisting">int         xmlXPathHasSameNodes            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 545                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
 546 Implements the EXSLT - Sets has-same-nodes function:
 547    boolean set:has-same-node(node-set, node-set)</p><p>
 548
 549 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set
 550 </td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set
 551 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>true (1) if <i><tt>nodes1</tt></i> shares any node with <i><tt>nodes2</tt></i>, false (0)
 552         otherwise
 553 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeLeadingSorted"></a>xmlXPathNodeLeadingSorted ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathNodeLeadingSorted     (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
 554                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);</pre><p>
 555 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="leading">leading</GTKDOCLINK>() function:
 556    node-set set:leading (node-set, node-set)</p><p>
 557
 558 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td> a node-set, sorted by document order
 559 </td></tr><tr><td><span class="term"><i><tt>node</tt></i> :</span></td><td> a node
 560 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes</tt></i> that precede <i><tt>node</tt></i> in document order,
 561         <i><tt>nodes</tt></i> if <i><tt>node</tt></i> is NULL or an empty node-set if <i><tt>nodes</tt></i>
 562         doesn't contain <i><tt>node</tt></i>
 563 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathLeadingSorted"></a>xmlXPathLeadingSorted ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathLeadingSorted         (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 564                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
 565 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="leading">leading</GTKDOCLINK>() function:
 566    node-set set:leading (node-set, node-set)</p><p>
 567
 568 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set, sorted by document order
 569 </td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set, sorted by document order
 570 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes1</tt></i> that precede the first node in <i><tt>nodes2</tt></i>
 571         in document order, <i><tt>nodes1</tt></i> if <i><tt>nodes2</tt></i> is NULL or empty or
 572         an empty node-set if <i><tt>nodes1</tt></i> doesn't contain <i><tt>nodes2</tt></i>
 573 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeLeading"></a>xmlXPathNodeLeading ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathNodeLeading           (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
 574                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);</pre><p>
 575 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="leading">leading</GTKDOCLINK>() function:
 576    node-set set:leading (node-set, node-set)
 577 <i><tt>nodes</tt></i> is sorted by document order, then <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="exslSetsNodeLeadingSorted">exslSetsNodeLeadingSorted</GTKDOCLINK>
 578 is called.</p><p>
 579
 580 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td>  a node-set
 581 </td></tr><tr><td><span class="term"><i><tt>node</tt></i> :</span></td><td>  a node
 582 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes</tt></i> that precede <i><tt>node</tt></i> in document order,
 583         <i><tt>nodes</tt></i> if <i><tt>node</tt></i> is NULL or an empty node-set if <i><tt>nodes</tt></i>
 584         doesn't contain <i><tt>node</tt></i>
 585 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathLeading"></a>xmlXPathLeading ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathLeading               (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 586                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
 587 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="leading">leading</GTKDOCLINK>() function:
 588    node-set set:leading (node-set, node-set)
 589 <i><tt>nodes1</tt></i> and <i><tt>nodes2</tt></i> are sorted by document order, then
 590 <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="exslSetsLeadingSorted">exslSetsLeadingSorted</GTKDOCLINK> is called.</p><p>
 591
 592 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set
 593 </td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set
 594 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes1</tt></i> that precede the first node in <i><tt>nodes2</tt></i>
 595         in document order, <i><tt>nodes1</tt></i> if <i><tt>nodes2</tt></i> is NULL or empty or
 596         an empty node-set if <i><tt>nodes1</tt></i> doesn't contain <i><tt>nodes2</tt></i>
 597 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeTrailingSorted"></a>xmlXPathNodeTrailingSorted ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathNodeTrailingSorted    (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
 598                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);</pre><p>
 599 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="trailing">trailing</GTKDOCLINK>() function:
 600    node-set set:trailing (node-set, node-set)</p><p>
 601
 602 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td> a node-set, sorted by document order
 603 </td></tr><tr><td><span class="term"><i><tt>node</tt></i> :</span></td><td> a node
 604 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes</tt></i> that follow <i><tt>node</tt></i> in document order,
 605         <i><tt>nodes</tt></i> if <i><tt>node</tt></i> is NULL or an empty node-set if <i><tt>nodes</tt></i>
 606         doesn't contain <i><tt>node</tt></i>
 607 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathTrailingSorted"></a>xmlXPathTrailingSorted ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathTrailingSorted        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 608                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
 609 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="trailing">trailing</GTKDOCLINK>() function:
 610    node-set set:trailing (node-set, node-set)</p><p>
 611
 612 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set, sorted by document order
 613 </td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set, sorted by document order
 614 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes1</tt></i> that follow the first node in <i><tt>nodes2</tt></i>
 615         in document order, <i><tt>nodes1</tt></i> if <i><tt>nodes2</tt></i> is NULL or empty or
 616         an empty node-set if <i><tt>nodes1</tt></i> doesn't contain <i><tt>nodes2</tt></i>
 617 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeTrailing"></a>xmlXPathNodeTrailing ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathNodeTrailing          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes,
 618                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node);</pre><p>
 619 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="trailing">trailing</GTKDOCLINK>() function:
 620    node-set set:trailing (node-set, node-set)
 621 <i><tt>nodes</tt></i> is sorted by document order, then <a href="libxml-xpathInternals.html#xmlXPathNodeTrailingSorted">xmlXPathNodeTrailingSorted</a>
 622 is called.</p><p>
 623
 624 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes</tt></i> :</span></td><td>  a node-set
 625 </td></tr><tr><td><span class="term"><i><tt>node</tt></i> :</span></td><td>  a node
 626 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes</tt></i> that follow <i><tt>node</tt></i> in document order,
 627         <i><tt>nodes</tt></i> if <i><tt>node</tt></i> is NULL or an empty node-set if <i><tt>nodes</tt></i>
 628         doesn't contain <i><tt>node</tt></i>
 629 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathTrailing"></a>xmlXPathTrailing ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathTrailing              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes1,
 630                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> nodes2);</pre><p>
 631 Implements the EXSLT - Sets <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="trailing">trailing</GTKDOCLINK>() function:
 632    node-set set:trailing (node-set, node-set)
 633 <i><tt>nodes1</tt></i> and <i><tt>nodes2</tt></i> are sorted by document order, then
 634 <a href="libxml-xpathInternals.html#xmlXPathTrailingSorted">xmlXPathTrailingSorted</a> is called.</p><p>
 635
 636 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>nodes1</tt></i> :</span></td><td>  a node-set
 637 </td></tr><tr><td><span class="term"><i><tt>nodes2</tt></i> :</span></td><td>  a node-set
 638 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the nodes in <i><tt>nodes1</tt></i> that follow the first node in <i><tt>nodes2</tt></i>
 639         in document order, <i><tt>nodes1</tt></i> if <i><tt>nodes2</tt></i> is NULL or empty or
 640         an empty node-set if <i><tt>nodes1</tt></i> doesn't contain <i><tt>nodes2</tt></i>
 641 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterNs"></a>xmlXPathRegisterNs ()</h3><pre class="programlisting">int         xmlXPathRegisterNs              (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 642                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *prefix,
 643                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);</pre><p>
 644 Register a new namespace. If <i><tt>ns_uri</tt></i> is NULL it unregisters
 645 the namespace</p><p>
 646
 647 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 648 </td></tr><tr><td><span class="term"><i><tt>prefix</tt></i> :</span></td><td>  the namespace prefix
 649 </td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the namespace name
 650 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
 651 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNsLookup"></a>xmlXPathNsLookup ()</h3><pre class="programlisting">const <a href="libxml-tree.html#xmlChar">xmlChar</a>* xmlXPathNsLookup             (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 652                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *prefix);</pre><p>
 653 Search in the namespace declaration array of the context for the given
 654 namespace name associated to the given prefix</p><p>
 655
 656 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 657 </td></tr><tr><td><span class="term"><i><tt>prefix</tt></i> :</span></td><td>  the namespace prefix value
 658 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the value or NULL if not found
 659 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisteredNsCleanup"></a>xmlXPathRegisteredNsCleanup ()</h3><pre class="programlisting">void        xmlXPathRegisteredNsCleanup     (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);</pre><p>
 660 Cleanup the XPath context data associated to registered variables</p><p>
 661
 662 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 663 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterFunc"></a>xmlXPathRegisterFunc ()</h3><pre class="programlisting">int         xmlXPathRegisterFunc            (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 664                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 665                                              <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> f);</pre><p>
 666 Register a new function. If <i><tt>f</tt></i> is NULL it unregisters the function</p><p>
 667
 668 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 669 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the function name
 670 </td></tr><tr><td><span class="term"><i><tt>f</tt></i> :</span></td><td>  the function implementation or NULL
 671 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
 672 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterFuncNS"></a>xmlXPathRegisterFuncNS ()</h3><pre class="programlisting">int         xmlXPathRegisterFuncNS          (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 673                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 674                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri,
 675                                              <a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> f);</pre><p>
 676 Register a new function. If <i><tt>f</tt></i> is NULL it unregisters the function</p><p>
 677
 678 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 679 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the function name
 680 </td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the function namespace URI
 681 </td></tr><tr><td><span class="term"><i><tt>f</tt></i> :</span></td><td>  the function implementation or NULL
 682 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
 683 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterVariable"></a>xmlXPathRegisterVariable ()</h3><pre class="programlisting">int         xmlXPathRegisterVariable        (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 684                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 685                                              <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);</pre><p>
 686 Register a new variable value. If <i><tt>value</tt></i> is NULL it unregisters
 687 the variable</p><p>
 688
 689 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 690 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the variable name
 691 </td></tr><tr><td><span class="term"><i><tt>value</tt></i> :</span></td><td>  the variable value or NULL
 692 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
 693 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterVariableNS"></a>xmlXPathRegisterVariableNS ()</h3><pre class="programlisting">int         xmlXPathRegisterVariableNS      (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 694                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 695                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri,
 696                                              <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);</pre><p>
 697 Register a new variable value. If <i><tt>value</tt></i> is NULL it unregisters
 698 the variable</p><p>
 699
 700 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 701 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the variable name
 702 </td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the variable namespace URI
 703 </td></tr><tr><td><span class="term"><i><tt>value</tt></i> :</span></td><td>  the variable value or NULL
 704 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 in case of success, -1 in case of error
 705 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFunctionLookup"></a>xmlXPathFunctionLookup ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> xmlXPathFunctionLookup     (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 706                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);</pre><p>
 707 Search in the Function array of the context for the given
 708 function.</p><p>
 709
 710 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 711 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the function name
 712 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the xmlXPathFunction or NULL if not found
 713 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFunctionLookupNS"></a>xmlXPathFunctionLookupNS ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathFunction">xmlXPathFunction</a> xmlXPathFunctionLookupNS   (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 714                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 715                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);</pre><p>
 716 Search in the Function array of the context for the given
 717 function.</p><p>
 718
 719 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 720 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the function name
 721 </td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the function namespace URI
 722 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the xmlXPathFunction or NULL if not found
 723 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisteredFuncsCleanup"></a>xmlXPathRegisteredFuncsCleanup ()</h3><pre class="programlisting">void        xmlXPathRegisteredFuncsCleanup  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);</pre><p>
 724 Cleanup the XPath context data associated to registered functions</p><p>
 725
 726 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 727 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathVariableLookup"></a>xmlXPathVariableLookup ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathVariableLookup    (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 728                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);</pre><p>
 729 Search in the Variable array of the context for the given
 730 variable value.</p><p>
 731
 732 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 733 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the variable name
 734 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>a copy of the value or NULL if not found
 735 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathVariableLookupNS"></a>xmlXPathVariableLookupNS ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathVariableLookupNS  (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt,
 736                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name,
 737                                              const <a href="libxml-tree.html#xmlChar">xmlChar</a> *ns_uri);</pre><p>
 738 Search in the Variable array of the context for the given
 739 variable value.</p><p>
 740
 741 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 742 </td></tr><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  the variable name
 743 </td></tr><tr><td><span class="term"><i><tt>ns_uri</tt></i> :</span></td><td>  the variable namespace URI
 744 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the a copy of the value or NULL if not found
 745 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisteredVariablesCleanup"></a>xmlXPathRegisteredVariablesCleanup ()</h3><pre class="programlisting">void        xmlXPathRegisteredVariablesCleanup
 746                                             (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);</pre><p>
 747 Cleanup the XPath context data associated to registered variables</p><p>
 748
 749 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 750 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewParserContext"></a>xmlXPathNewParserContext ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> xmlXPathNewParserContext
 751                                             (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *str,
 752                                              <a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);</pre><p>
 753 Create a new xmlXPathParserContext</p><p>
 754
 755 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>str</tt></i> :</span></td><td>  the XPath expression
 756 </td></tr><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 757 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the xmlXPathParserContext just allocated.
 758 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFreeParserContext"></a>xmlXPathFreeParserContext ()</h3><pre class="programlisting">void        xmlXPathFreeParserContext       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 759 Free up an xmlXPathParserContext</p><p>
 760
 761 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the context to free
 762 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="valuePop"></a>valuePop ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> valuePop                  (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 763 Pops the top XPath object from the value stack</p><p>
 764
 765 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td> an XPath evaluation context
 766 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the XPath object just removed
 767 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="valuePush"></a>valuePush ()</h3><pre class="programlisting">int         valuePush                       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 768                                              <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> value);</pre><p>
 769 Pushes a new XPath object on top of the value stack</p><p>
 770
 771 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  an XPath evaluation context
 772 </td></tr><tr><td><span class="term"><i><tt>value</tt></i> :</span></td><td>  the XPath object
 773 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the number of items on the value stack
 774 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewString"></a>xmlXPathNewString ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewString         (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *val);</pre><p>
 775 Create a new xmlXPathObjectPtr of type string and of value <i><tt>val</tt></i></p><p>
 776
 777 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the xmlChar * value
 778 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 779 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewCString"></a>xmlXPathNewCString ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewCString        (const char *val);</pre><p>
 780 Create a new xmlXPathObjectPtr of type string and of value <i><tt>val</tt></i></p><p>
 781
 782 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the char * value
 783 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 784 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathWrapString"></a>xmlXPathWrapString ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathWrapString        (<a href="libxml-tree.html#xmlChar">xmlChar</a> *val);</pre><p>
 785 Wraps the <i><tt>val</tt></i> string into an XPath object.</p><p>
 786
 787 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the xmlChar * value
 788 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 789 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathWrapCString"></a>xmlXPathWrapCString ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathWrapCString       (char *val);</pre><p>
 790 Wraps a string into an XPath object.</p><p>
 791
 792 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the char * value
 793 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 794 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewFloat"></a>xmlXPathNewFloat ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewFloat          (<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK> val);</pre><p>
 795 Create a new xmlXPathObjectPtr of type double and of value <i><tt>val</tt></i></p><p>
 796
 797 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the double value
 798 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 799 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewBoolean"></a>xmlXPathNewBoolean ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewBoolean        (int val);</pre><p>
 800 Create a new xmlXPathObjectPtr of type boolean and of value <i><tt>val</tt></i></p><p>
 801
 802 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the boolean value
 803 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 804 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewNodeSet"></a>xmlXPathNewNodeSet ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewNodeSet        (<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
 805 Create a new xmlXPathObjectPtr of type NodeSet and initialize
 806 it with the single Node <i><tt>val</tt></i></p><p>
 807
 808 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the NodePtr value
 809 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 810 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewValueTree"></a>xmlXPathNewValueTree ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewValueTree      (<a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
 811 Create a new xmlXPathObjectPtr of type Value Tree (XSLT) and initialize
 812 it with the tree root <i><tt>val</tt></i></p><p>
 813
 814 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the NodePtr value
 815 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 816 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetAdd"></a>xmlXPathNodeSetAdd ()</h3><pre class="programlisting">void        xmlXPathNodeSetAdd              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 817                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
 818 add a new xmlNodePtr to an existing NodeSet</p><p>
 819
 820 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the initial node set
 821 </td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  a new xmlNodePtr
 822 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetAddUnique"></a>xmlXPathNodeSetAddUnique ()</h3><pre class="programlisting">void        xmlXPathNodeSetAddUnique        (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 823                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
 824 add a new xmlNodePtr to an existing NodeSet, optimized version
 825 when we are sure the node is not already in the set.</p><p>
 826
 827 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the initial node set
 828 </td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  a new xmlNodePtr
 829 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetAddNs"></a>xmlXPathNodeSetAddNs ()</h3><pre class="programlisting">void        xmlXPathNodeSetAddNs            (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 830                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> node,
 831                                              <a href="libxml-tree.html#xmlNsPtr">xmlNsPtr</a> ns);</pre><p>
 832 add a new namespace node to an existing NodeSet</p><p>
 833
 834 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the initial node set
 835 </td></tr><tr><td><span class="term"><i><tt>node</tt></i> :</span></td><td>  the hosting node
 836 </td></tr><tr><td><span class="term"><i><tt>ns</tt></i> :</span></td><td>  a the namespace node
 837 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetSort"></a>xmlXPathNodeSetSort ()</h3><pre class="programlisting">void        xmlXPathNodeSetSort             (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> set);</pre><p>
 838 Sort the node set in document order</p><p>
 839
 840 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>set</tt></i> :</span></td><td>  the node set
 841 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRoot"></a>xmlXPathRoot ()</h3><pre class="programlisting">void        xmlXPathRoot                    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 842 Initialize the context to the root of the document</p><p>
 843
 844 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 845 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathEvalExpr"></a>xmlXPathEvalExpr ()</h3><pre class="programlisting">void        xmlXPathEvalExpr                (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 846 Parse and evaluate an XPath expression in the given context,
 847 then push the result on the context stack</p><p>
 848
 849 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 850 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathParseName"></a>xmlXPathParseName ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlChar">xmlChar</a>*    xmlXPathParseName               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 851 parse an XML name
 852 </p><p>
 853 [4] NameChar ::= Letter | Digit | '.' | '-' | '_' | ':' |
 854                  CombiningChar | Extender
 855 </p><p>
 856 [5] Name ::= (Letter | '_' | ':') (NameChar)*</p><p>
 857
 858 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 859 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the namespace name or NULL
 860 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathParseNCName"></a>xmlXPathParseNCName ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlChar">xmlChar</a>*    xmlXPathParseNCName             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 861 parse an XML namespace non qualified name.
 862 </p><p>
 863 [NS 3] NCName ::= (Letter | '_') (NCNameChar)*
 864 </p><p>
 865 [NS 4] NCNameChar ::= Letter | Digit | '.' | '-' | '_' |
 866                       CombiningChar | Extender</p><p>
 867
 868 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 869 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the namespace name or NULL
 870 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStringEvalNumber"></a>xmlXPathStringEvalNumber ()</h3><pre class="programlisting"><GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="double">double</GTKDOCLINK>      xmlXPathStringEvalNumber        (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *str);</pre><p>
 871 [30a]  Float  ::= Number ('e' Digits?)?
 872 </p><p>
 873  [30]   Number ::=   Digits ('.' Digits?)?
 874                    | '.' Digits
 875  [31]   Digits ::=   [0-9]+
 876 </p><p>
 877 Compile a Number in the string
 878 In complement of the Number expression, this function also handles
 879 negative values : '-' Number.</p><p>
 880
 881 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>str</tt></i> :</span></td><td>  A string to scan
 882 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the double value.
 883 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathEvaluatePredicateResult"></a>xmlXPathEvaluatePredicateResult ()</h3><pre class="programlisting">int         xmlXPathEvaluatePredicateResult (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 884                                              <a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> res);</pre><p>
 885 Evaluate a predicate result for the current node.
 886 A PredicateExpr is evaluated by evaluating the Expr and converting
 887 the result to a boolean. If the result is a number, the result will
 888 be converted to true if the number is equal to the position of the
 889 context node in the context node list (as returned by the position
 890 function) and will be converted to false otherwise; if the result
 891 is not a number, then the result will be converted as if by a call
 892 to the boolean function.</p><p>
 893
 894 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 895 </td></tr><tr><td><span class="term"><i><tt>res</tt></i> :</span></td><td>  the Predicate Expression evaluation result
 896 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>1 if predicate is true, 0 otherwise
 897 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRegisterAllFunctions"></a>xmlXPathRegisterAllFunctions ()</h3><pre class="programlisting">void        xmlXPathRegisterAllFunctions    (<a href="libxml-xpath.html#xmlXPathContextPtr">xmlXPathContextPtr</a> ctxt);</pre><p>
 898 Registers all default XPath functions in this context</p><p>
 899
 900 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath context
 901 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetMerge"></a>xmlXPathNodeSetMerge ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> xmlXPathNodeSetMerge          (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val1,
 902                                              <a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val2);</pre><p>
 903 Merges two nodesets, all nodes from <i><tt>val2</tt></i> are added to <i><tt>val1</tt></i>
 904 if <i><tt>val1</tt></i> is NULL, a new set is created and copied from <i><tt>val2</tt></i></p><p>
 905
 906 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val1</tt></i> :</span></td><td>  the first NodeSet or NULL
 907 </td></tr><tr><td><span class="term"><i><tt>val2</tt></i> :</span></td><td>  the second NodeSet
 908 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td><i><tt>val1</tt></i> once extended or NULL in case of error.
 909 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetDel"></a>xmlXPathNodeSetDel ()</h3><pre class="programlisting">void        xmlXPathNodeSetDel              (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 910                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> val);</pre><p>
 911 Removes an xmlNodePtr from an existing NodeSet</p><p>
 912
 913 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the initial node set
 914 </td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  an xmlNodePtr
 915 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetRemove"></a>xmlXPathNodeSetRemove ()</h3><pre class="programlisting">void        xmlXPathNodeSetRemove           (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> cur,
 916                                              int val);</pre><p>
 917 Removes an entry from an existing NodeSet list.</p><p>
 918
 919 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the initial node set
 920 </td></tr><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the index to remove
 921 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNewNodeSetList"></a>xmlXPathNewNodeSetList ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathNewNodeSetList    (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val);</pre><p>
 922 Create a new xmlXPathObjectPtr of type NodeSet and initialize
 923 it with the Nodeset <i><tt>val</tt></i></p><p>
 924
 925 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  an existing NodeSet
 926 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 927 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathWrapNodeSet"></a>xmlXPathWrapNodeSet ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathWrapNodeSet       (<a href="libxml-xpath.html#xmlNodeSetPtr">xmlNodeSetPtr</a> val);</pre><p>
 928 Wrap the Nodeset <i><tt>val</tt></i> in a new xmlXPathObjectPtr</p><p>
 929
 930 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the NodePtr value
 931 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 932 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathWrapExternal"></a>xmlXPathWrapExternal ()</h3><pre class="programlisting"><a href="libxml-xpath.html#xmlXPathObjectPtr">xmlXPathObjectPtr</a> xmlXPathWrapExternal      (void *val);</pre><p>
 933 Wraps the <i><tt>val</tt></i> data into an XPath object.</p><p>
 934
 935 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>val</tt></i> :</span></td><td>  the user data
 936 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the newly created object.
 937 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathEqualValues"></a>xmlXPathEqualValues ()</h3><pre class="programlisting">int         xmlXPathEqualValues             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 938 Implement the equal operation on XPath objects content: <i><tt>arg1</tt></i> == <i><tt>arg2</tt></i></p><p>
 939
 940 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 941 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 or 1 depending on the results of the test.
 942 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNotEqualValues"></a>xmlXPathNotEqualValues ()</h3><pre class="programlisting">int         xmlXPathNotEqualValues          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 943 Implement the equal operation on XPath objects content: <i><tt>arg1</tt></i> == <i><tt>arg2</tt></i></p><p>
 944
 945 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 946 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>0 or 1 depending on the results of the test.
 947 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathCompareValues"></a>xmlXPathCompareValues ()</h3><pre class="programlisting">int         xmlXPathCompareValues           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
 948                                              int inf,
 949                                              int strict);</pre><p>
 950 Implement the compare operation on XPath objects:
 951     <i><tt>arg1</tt></i> &lt; <i><tt>arg2</tt></i>    (1, 1, ...
 952     <i><tt>arg1</tt></i> &lt;= <i><tt>arg2</tt></i>   (1, 0, ...
 953     <i><tt>arg1</tt></i> &gt; <i><tt>arg2</tt></i>    (0, 1, ...
 954     <i><tt>arg1</tt></i> &gt;= <i><tt>arg2</tt></i>   (0, 0, ...
 955 </p><p>
 956 When neither object to be compared is a node-set and the operator is
 957 &lt;=, &lt;, &gt;=, &gt;, then the objects are compared by converted both objects
 958 to numbers and comparing the numbers according to IEEE 754. The &lt;
 959 comparison will be true if and only if the first number is less than the
 960 second number. The &lt;= comparison will be true if and only if the first
 961 number is less than or equal to the second number. The &gt; comparison
 962 will be true if and only if the first number is greater than the second
 963 number. The &gt;= comparison will be true if and only if the first number
 964 is greater than or equal to the second number.</p><p>
 965
 966 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 967 </td></tr><tr><td><span class="term"><i><tt>inf</tt></i> :</span></td><td>  less than (1) or greater than (0)
 968 </td></tr><tr><td><span class="term"><i><tt>strict</tt></i> :</span></td><td>  is the comparison strict
 969 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>1 if the comparison succeeded, 0 if it failed
 970 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathValueFlipSign"></a>xmlXPathValueFlipSign ()</h3><pre class="programlisting">void        xmlXPathValueFlipSign           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 971 Implement the unary - operation on an XPath object
 972 The numeric operators convert their operands to numbers as if
 973 by calling the number function.</p><p>
 974
 975 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 976 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathAddValues"></a>xmlXPathAddValues ()</h3><pre class="programlisting">void        xmlXPathAddValues               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 977 Implement the add operation on XPath objects:
 978 The numeric operators convert their operands to numbers as if
 979 by calling the number function.</p><p>
 980
 981 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 982 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSubValues"></a>xmlXPathSubValues ()</h3><pre class="programlisting">void        xmlXPathSubValues               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 983 Implement the subtraction operation on XPath objects:
 984 The numeric operators convert their operands to numbers as if
 985 by calling the number function.</p><p>
 986
 987 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 988 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathMultValues"></a>xmlXPathMultValues ()</h3><pre class="programlisting">void        xmlXPathMultValues              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 989 Implement the multiply operation on XPath objects:
 990 The numeric operators convert their operands to numbers as if
 991 by calling the number function.</p><p>
 992
 993 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
 994 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathDivValues"></a>xmlXPathDivValues ()</h3><pre class="programlisting">void        xmlXPathDivValues               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
 995 Implement the div operation on XPath objects <i><tt>arg1</tt></i> / <i><tt>arg2</tt></i>:
 996 The numeric operators convert their operands to numbers as if
 997 by calling the number function.</p><p>
 998
 999 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1000 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathModValues"></a>xmlXPathModValues ()</h3><pre class="programlisting">void        xmlXPathModValues               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt);</pre><p>
1001 Implement the mod operation on XPath objects: <i><tt>arg1</tt></i> / <i><tt>arg2</tt></i>
1002 The numeric operators convert their operands to numbers as if
1003 by calling the number function.</p><p>
1004
1005 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1006 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathIsNodeType"></a>xmlXPathIsNodeType ()</h3><pre class="programlisting">int         xmlXPathIsNodeType              (const <a href="libxml-tree.html#xmlChar">xmlChar</a> *name);</pre><p>
1007 Is the name given a NodeType one.
1008 </p><p>
1009  [38]   NodeType ::=   'comment'
1010                    | 'text'
1011                    | 'processing-instruction'
1012                    | 'node'</p><p>
1013
1014 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>name</tt></i> :</span></td><td>  a name string
1015 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>1 if true 0 otherwise
1016 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextSelf"></a>xmlXPathNextSelf ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextSelf                (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1017                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1018 Traversal function for the "self" direction
1019 The self axis contains just the context node itself</p><p>
1020
1021 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1022 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1023 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1024 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextChild"></a>xmlXPathNextChild ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextChild               (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1025                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1026 Traversal function for the "child" direction
1027 The child axis contains the children of the context node in document order.</p><p>
1028
1029 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1030 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1031 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1032 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextDescendant"></a>xmlXPathNextDescendant ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextDescendant          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1033                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1034 Traversal function for the "descendant" direction
1035 the descendant axis contains the descendants of the context node in document
1036 order; a descendant is a child or a child of a child and so on.</p><p>
1037
1038 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1039 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1040 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1041 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextDescendantOrSelf"></a>xmlXPathNextDescendantOrSelf ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextDescendantOrSelf    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1042                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1043 Traversal function for the "descendant-or-self" direction
1044 the descendant-or-self axis contains the context node and the descendants
1045 of the context node in document order; thus the context node is the first
1046 node on the axis, and the first child of the context node is the second node
1047 on the axis</p><p>
1048
1049 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1050 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1051 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1052 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextParent"></a>xmlXPathNextParent ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextParent              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1053                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1054 Traversal function for the "parent" direction
1055 The parent axis contains the parent of the context node, if there is one.</p><p>
1056
1057 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1058 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1059 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1060 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextAncestorOrSelf"></a>xmlXPathNextAncestorOrSelf ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextAncestorOrSelf      (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1061                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1062 Traversal function for the "ancestor-or-self" direction
1063 he ancestor-or-self axis contains the context node and ancestors of
1064 the context node in reverse document order; thus the context node is
1065 the first node on the axis, and the context node's parent the second;
1066 parent here is defined the same as with the parent axis.</p><p>
1067
1068 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1069 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1070 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1071 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextFollowingSibling"></a>xmlXPathNextFollowingSibling ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextFollowingSibling    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1072                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1073 Traversal function for the "following-sibling" direction
1074 The following-sibling axis contains the following siblings of the context
1075 node in document order.</p><p>
1076
1077 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1078 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1079 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1080 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextFollowing"></a>xmlXPathNextFollowing ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextFollowing           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1081                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1082 Traversal function for the "following" direction
1083 The following axis contains all nodes in the same document as the context
1084 node that are after the context node in document order, excluding any
1085 descendants and excluding attribute nodes and namespace nodes; the nodes
1086 are ordered in document order</p><p>
1087
1088 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1089 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1090 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1091 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextNamespace"></a>xmlXPathNextNamespace ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextNamespace           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1092                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1093 Traversal function for the "namespace" direction
1094 the namespace axis contains the namespace nodes of the context node;
1095 the order of nodes on this axis is implementation-defined; the axis will
1096 be empty unless the context node is an element
1097 </p><p>
1098 We keep the XML namespace node at the end of the list.</p><p>
1099
1100 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1101 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current attribute in the traversal
1102 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1103 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextAttribute"></a>xmlXPathNextAttribute ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextAttribute           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1104                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1105 Traversal function for the "attribute" direction
1106 TODO: support DTD inherited default attributes</p><p>
1107
1108 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1109 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current attribute in the traversal
1110 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1111 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextPreceding"></a>xmlXPathNextPreceding ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextPreceding           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1112                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1113 Traversal function for the "preceding" direction
1114 the preceding axis contains all nodes in the same document as the context
1115 node that are before the context node in document order, excluding any
1116 ancestors and excluding attribute nodes and namespace nodes; the nodes are
1117 ordered in reverse document order</p><p>
1118
1119 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1120 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1121 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1122 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextAncestor"></a>xmlXPathNextAncestor ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextAncestor            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1123                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1124 Traversal function for the "ancestor" direction
1125 the ancestor axis contains the ancestors of the context node; the ancestors
1126 of the context node consist of the parent of context node and the parent's
1127 parent and so on; the nodes are ordered in reverse document order; thus the
1128 parent is the first node on the axis, and the parent's parent is the second
1129 node on the axis</p><p>
1130
1131 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1132 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1133 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1134 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNextPrecedingSibling"></a>xmlXPathNextPrecedingSibling ()</h3><pre class="programlisting"><a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a>  xmlXPathNextPrecedingSibling    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1135                                              <a href="libxml-tree.html#xmlNodePtr">xmlNodePtr</a> cur);</pre><p>
1136 Traversal function for the "preceding-sibling" direction
1137 The preceding-sibling axis contains the preceding siblings of the context
1138 node in reverse document order; the first preceding sibling is first on the
1139 axis; the sibling preceding that node is the second on the axis and so on.</p><p>
1140
1141 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1142 </td></tr><tr><td><span class="term"><i><tt>cur</tt></i> :</span></td><td>  the current node in the traversal
1143 </td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td>the next element following that axis
1144 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathLastFunction"></a>xmlXPathLastFunction ()</h3><pre class="programlisting">void        xmlXPathLastFunction            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1145                                              int nargs);</pre><p>
1146 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="last">last</GTKDOCLINK>() XPath function
1147    number <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="last">last</GTKDOCLINK>()
1148 The last function returns the number of nodes in the context node list.</p><p>
1149
1150 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1151 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1152 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathPositionFunction"></a>xmlXPathPositionFunction ()</h3><pre class="programlisting">void        xmlXPathPositionFunction        (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1153                                              int nargs);</pre><p>
1154 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="position">position</GTKDOCLINK>() XPath function
1155    number <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="position">position</GTKDOCLINK>()
1156 The position function returns the position of the context node in the
1157 context node list. The first position is 1, and so the last position
1158 will be equal to <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="last">last</GTKDOCLINK>().</p><p>
1159
1160 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1161 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1162 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathCountFunction"></a>xmlXPathCountFunction ()</h3><pre class="programlisting">void        xmlXPathCountFunction           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1163                                              int nargs);</pre><p>
1164 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="count">count</GTKDOCLINK>() XPath function
1165    number count(node-set)</p><p>
1166
1167 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1168 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1169 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathIdFunction"></a>xmlXPathIdFunction ()</h3><pre class="programlisting">void        xmlXPathIdFunction              (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1170                                              int nargs);</pre><p>
1171 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="id">id</GTKDOCLINK>() XPath function
1172    node-set id(object)
1173 The id function selects elements by their unique ID
1174 (see [5.2.1 Unique IDs]). When the argument to id is of type node-set,
1175 then the result is the union of the result of applying id to the
1176 string value of each of the nodes in the argument node-set. When the
1177 argument to id is of any other type, the argument is converted to a
1178 string as if by a call to the string function; the string is split
1179 into a whitespace-separated list of tokens (whitespace is any sequence
1180 of characters matching the production S); the result is a node-set
1181 containing the elements in the same document as the context node that
1182 have a unique ID equal to any of the tokens in the list.</p><p>
1183
1184 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1185 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1186 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathLocalNameFunction"></a>xmlXPathLocalNameFunction ()</h3><pre class="programlisting">void        xmlXPathLocalNameFunction       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1187                                              int nargs);</pre><p>
1188 Implement the local-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="name">name</GTKDOCLINK>() XPath function
1189    string local-name(node-set?)
1190 The local-name function returns a string containing the local part
1191 of the name of the node in the argument node-set that is first in
1192 document order. If the node-set is empty or the first node has no
1193 name, an empty string is returned. If the argument is omitted it
1194 defaults to the context node.</p><p>
1195
1196 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1197 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1198 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNamespaceURIFunction"></a>xmlXPathNamespaceURIFunction ()</h3><pre class="programlisting">void        xmlXPathNamespaceURIFunction    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1199                                              int nargs);</pre><p>
1200 Implement the namespace-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="uri">uri</GTKDOCLINK>() XPath function
1201    string namespace-uri(node-set?)
1202 The namespace-uri function returns a string containing the
1203 namespace URI of the expanded name of the node in the argument
1204 node-set that is first in document order. If the node-set is empty,
1205 the first node has no name, or the expanded name has no namespace
1206 URI, an empty string is returned. If the argument is omitted it
1207 defaults to the context node.</p><p>
1208
1209 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1210 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1211 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStringFunction"></a>xmlXPathStringFunction ()</h3><pre class="programlisting">void        xmlXPathStringFunction          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1212                                              int nargs);</pre><p>
1213 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="string">string</GTKDOCLINK>() XPath function
1214    string string(object?)
1215 he string function converts an object to a string as follows:
1216    - A node-set is converted to a string by returning the value of
1217      the node in the node-set that is first in document order.
1218      If the node-set is empty, an empty string is returned.
1219    - A number is converted to a string as follows
1220      + NaN is converted to the string NaN
1221      + positive zero is converted to the string 0
1222      + negative zero is converted to the string 0
1223      + positive infinity is converted to the string Infinity
1224      + negative infinity is converted to the string -Infinity
1225      + if the number is an integer, the number is represented in
1226        decimal form as a Number with no decimal point and no leading
1227        zeros, preceded by a minus sign (-) if the number is negative
1228      + otherwise, the number is represented in decimal form as a
1229        Number including a decimal point with at least one digit
1230        before the decimal point and at least one digit after the
1231        decimal point, preceded by a minus sign (-) if the number
1232        is negative; there must be no leading zeros before the decimal
1233        point apart possibly from the one required digit immediately
1234        before the decimal point; beyond the one required digit
1235        after the decimal point there must be as many, but only as
1236        many, more digits as are needed to uniquely distinguish the
1237        number from all other IEEE 754 numeric values.
1238    - The boolean false value is converted to the string false.
1239      The boolean true value is converted to the string true.
1240 </p><p>
1241 If the argument is omitted, it defaults to a node-set with the
1242 context node as its only member.</p><p>
1243
1244 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1245 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1246 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStringLengthFunction"></a>xmlXPathStringLengthFunction ()</h3><pre class="programlisting">void        xmlXPathStringLengthFunction    (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1247                                              int nargs);</pre><p>
1248 Implement the string-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="length">length</GTKDOCLINK>() XPath function
1249    number string-length(string?)
1250 The string-length returns the number of characters in the string
1251 (see [3.6 Strings]). If the argument is omitted, it defaults to
1252 the context node converted to a string, in other words the value
1253 of the context node.</p><p>
1254
1255 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1256 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1257 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathConcatFunction"></a>xmlXPathConcatFunction ()</h3><pre class="programlisting">void        xmlXPathConcatFunction          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1258                                              int nargs);</pre><p>
1259 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="concat">concat</GTKDOCLINK>() XPath function
1260    string concat(string, string, string*)
1261 The concat function returns the concatenation of its arguments.</p><p>
1262
1263 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1264 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1265 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathContainsFunction"></a>xmlXPathContainsFunction ()</h3><pre class="programlisting">void        xmlXPathContainsFunction        (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1266                                              int nargs);</pre><p>
1267 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="contains">contains</GTKDOCLINK>() XPath function
1268    boolean contains(string, string)
1269 The contains function returns true if the first argument string
1270 contains the second argument string, and otherwise returns false.</p><p>
1271
1272 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1273 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1274 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathStartsWithFunction"></a>xmlXPathStartsWithFunction ()</h3><pre class="programlisting">void        xmlXPathStartsWithFunction      (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1275                                              int nargs);</pre><p>
1276 Implement the starts-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="with">with</GTKDOCLINK>() XPath function
1277    boolean starts-with(string, string)
1278 The starts-with function returns true if the first argument string
1279 starts with the second argument string, and otherwise returns false.</p><p>
1280
1281 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1282 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1283 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSubstringFunction"></a>xmlXPathSubstringFunction ()</h3><pre class="programlisting">void        xmlXPathSubstringFunction       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1284                                              int nargs);</pre><p>
1285 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="substring">substring</GTKDOCLINK>() XPath function
1286    string substring(string, number, number?)
1287 The substring function returns the substring of the first argument
1288 starting at the position specified in the second argument with
1289 length specified in the third argument. For example,
1290 substring("12345",2,3) returns "234". If the third argument is not
1291 specified, it returns the substring starting at the position specified
1292 in the second argument and continuing to the end of the string. For
1293 example, substring("12345",2) returns "2345".  More precisely, each
1294 character in the string (see [3.6 Strings]) is considered to have a
1295 numeric position: the position of the first character is 1, the position
1296 of the second character is 2 and so on. The returned substring contains
1297 those characters for which the position of the character is greater than
1298 or equal to the second argument and, if the third argument is specified,
1299 less than the sum of the second and third arguments; the comparisons
1300 and addition used for the above follow the standard IEEE 754 rules. Thus:
1301  - substring("12345", 1.5, 2.6) returns "234"
1302  - substring("12345", 0, 3) returns "12"
1303  - substring("12345", 0 div 0, 3) returns ""
1304  - substring("12345", 1, 0 div 0) returns ""
1305  - substring("12345", -42, 1 div 0) returns "12345"
1306  - substring("12345", -1 div 0, 1 div 0) returns ""</p><p>
1307
1308 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1309 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1310 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSubstringBeforeFunction"></a>xmlXPathSubstringBeforeFunction ()</h3><pre class="programlisting">void        xmlXPathSubstringBeforeFunction (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1311                                              int nargs);</pre><p>
1312 Implement the substring-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="before">before</GTKDOCLINK>() XPath function
1313    string substring-before(string, string)
1314 The substring-before function returns the substring of the first
1315 argument string that precedes the first occurrence of the second
1316 argument string in the first argument string, or the empty string
1317 if the first argument string does not contain the second argument
1318 string. For example, substring-before("1999/04/01","/") returns 1999.</p><p>
1319
1320 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1321 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1322 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSubstringAfterFunction"></a>xmlXPathSubstringAfterFunction ()</h3><pre class="programlisting">void        xmlXPathSubstringAfterFunction  (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1323                                              int nargs);</pre><p>
1324 Implement the substring-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="after">after</GTKDOCLINK>() XPath function
1325    string substring-after(string, string)
1326 The substring-after function returns the substring of the first
1327 argument string that follows the first occurrence of the second
1328 argument string in the first argument string, or the empty stringi
1329 if the first argument string does not contain the second argument
1330 string. For example, substring-after("1999/04/01","/") returns 04/01,
1331 and substring-after("1999/04/01","19") returns 99/04/01.</p><p>
1332
1333 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1334 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1335 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNormalizeFunction"></a>xmlXPathNormalizeFunction ()</h3><pre class="programlisting">void        xmlXPathNormalizeFunction       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1336                                              int nargs);</pre><p>
1337 Implement the normalize-<GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="space">space</GTKDOCLINK>() XPath function
1338    string normalize-space(string?)
1339 The normalize-space function returns the argument string with white
1340 space normalized by stripping leading and trailing whitespace
1341 and replacing sequences of whitespace characters by a single
1342 space. Whitespace characters are the same allowed by the S production
1343 in XML. If the argument is omitted, it defaults to the context
1344 node converted to a string, in other words the value of the context node.</p><p>
1345
1346 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1347 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1348 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathTranslateFunction"></a>xmlXPathTranslateFunction ()</h3><pre class="programlisting">void        xmlXPathTranslateFunction       (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1349                                              int nargs);</pre><p>
1350 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="translate">translate</GTKDOCLINK>() XPath function
1351    string translate(string, string, string)
1352 The translate function returns the first argument string with
1353 occurrences of characters in the second argument string replaced
1354 by the character at the corresponding position in the third argument
1355 string. For example, translate("bar","abc","ABC") returns the string
1356 BAr. If there is a character in the second argument string with no
1357 character at a corresponding position in the third argument string
1358 (because the second argument string is longer than the third argument
1359 string), then occurrences of that character in the first argument
1360 string are removed. For example, translate("--aaa--","abc-","ABC")</p><p>
1361
1362 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1363 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1364 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNotFunction"></a>xmlXPathNotFunction ()</h3><pre class="programlisting">void        xmlXPathNotFunction             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1365                                              int nargs);</pre><p>
1366 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="not">not</GTKDOCLINK>() XPath function
1367    boolean not(boolean)
1368 The not function returns true if its argument is false,
1369 and false otherwise.</p><p>
1370
1371 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1372 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1373 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathTrueFunction"></a>xmlXPathTrueFunction ()</h3><pre class="programlisting">void        xmlXPathTrueFunction            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1374                                              int nargs);</pre><p>
1375 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="true">true</GTKDOCLINK>() XPath function
1376    boolean <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="true">true</GTKDOCLINK>()</p><p>
1377
1378 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1379 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1380 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFalseFunction"></a>xmlXPathFalseFunction ()</h3><pre class="programlisting">void        xmlXPathFalseFunction           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1381                                              int nargs);</pre><p>
1382 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="false">false</GTKDOCLINK>() XPath function
1383    boolean <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="false">false</GTKDOCLINK>()</p><p>
1384
1385 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1386 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1387 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathLangFunction"></a>xmlXPathLangFunction ()</h3><pre class="programlisting">void        xmlXPathLangFunction            (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1388                                              int nargs);</pre><p>
1389 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="lang">lang</GTKDOCLINK>() XPath function
1390    boolean lang(string)
1391 The lang function returns true or false depending on whether the
1392 language of the context node as specified by xml:lang attributes
1393 is the same as or is a sublanguage of the language specified by
1394 the argument string. The language of the context node is determined
1395 by the value of the xml:lang attribute on the context node, or, if
1396 the context node has no xml:lang attribute, by the value of the
1397 xml:lang attribute on the nearest ancestor of the context node that
1398 has an xml:lang attribute. If there is no such attribute, then lang</p><p>
1399
1400 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1401 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1402 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNumberFunction"></a>xmlXPathNumberFunction ()</h3><pre class="programlisting">void        xmlXPathNumberFunction          (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1403                                              int nargs);</pre><p>
1404 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="number">number</GTKDOCLINK>() XPath function
1405    number number(object?)</p><p>
1406
1407 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1408 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1409 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathSumFunction"></a>xmlXPathSumFunction ()</h3><pre class="programlisting">void        xmlXPathSumFunction             (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1410                                              int nargs);</pre><p>
1411 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="sum">sum</GTKDOCLINK>() XPath function
1412    number sum(node-set)
1413 The sum function returns the sum of the values of the nodes in
1414 the argument node-set.</p><p>
1415
1416 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1417 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1418 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathFloorFunction"></a>xmlXPathFloorFunction ()</h3><pre class="programlisting">void        xmlXPathFloorFunction           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1419                                              int nargs);</pre><p>
1420 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="floor">floor</GTKDOCLINK>() XPath function
1421    number floor(number)
1422 The floor function returns the largest (closest to positive infinity)
1423 number that is not greater than the argument and that is an integer.</p><p>
1424
1425 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1426 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1427 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathCeilingFunction"></a>xmlXPathCeilingFunction ()</h3><pre class="programlisting">void        xmlXPathCeilingFunction         (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1428                                              int nargs);</pre><p>
1429 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="ceiling">ceiling</GTKDOCLINK>() XPath function
1430    number ceiling(number)
1431 The ceiling function returns the smallest (closest to negative infinity)
1432 number that is not less than the argument and that is an integer.</p><p>
1433
1434 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1435 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1436 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathRoundFunction"></a>xmlXPathRoundFunction ()</h3><pre class="programlisting">void        xmlXPathRoundFunction           (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1437                                              int nargs);</pre><p>
1438 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="round">round</GTKDOCLINK>() XPath function
1439    number round(number)
1440 The round function returns the number that is closest to the
1441 argument and that is an integer. If there are two such numbers,
1442 then the one that is even is returned.</p><p>
1443
1444 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1445 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1446 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathBooleanFunction"></a>xmlXPathBooleanFunction ()</h3><pre class="programlisting">void        xmlXPathBooleanFunction         (<a href="libxml-xpath.html#xmlXPathParserContextPtr">xmlXPathParserContextPtr</a> ctxt,
1447                                              int nargs);</pre><p>
1448 Implement the <GTKDOCLINK xmlns="http://www.w3.org/TR/xhtml1/transitional" HREF="boolean">boolean</GTKDOCLINK>() XPath function
1449    boolean boolean(object)
1450 he boolean function converts its argument to a boolean as follows:
1451    - a number is true if and only if it is neither positive or
1452      negative zero nor NaN
1453    - a node-set is true if and only if it is non-empty
1454    - a string is true if and only if its length is non-zero</p><p>
1455
1456 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ctxt</tt></i> :</span></td><td>  the XPath Parser context
1457 </td></tr><tr><td><span class="term"><i><tt>nargs</tt></i> :</span></td><td>  the number of arguments
1458 </td></tr></tbody></table></div></div><hr xmlns="http://www.w3.org/TR/xhtml1/transitional"></hr><div class="refsect2" lang="en"><h3><a name="xmlXPathNodeSetFreeNs"></a>xmlXPathNodeSetFreeNs ()</h3><pre class="programlisting">void        xmlXPathNodeSetFreeNs           (<a href="libxml-tree.html#xmlNsPtr">xmlNsPtr</a> ns);</pre><p>
1459 Namespace node in libxml don't match the XPath semantic. In a node set
1460 the namespace nodes are duplicated and the next pointer is set to the
1461 parent node in the XPath semantic. Check if such a node need to be freed</p><p>
1462
1463 </p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>ns</tt></i> :</span></td><td>  the XPath namespace node found in a nodeset.
1464 </td></tr></tbody></table></div></div></div></div><table xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="0"><tr valign="middle"><td align="left"><a accesskey="p" href="libxml-xpath.html"><b>&lt;&lt; xpath</b></a></td><td align="right"><a accesskey="n" href="libxml-xpointer.html"><b>xpointer &gt;&gt;</b></a></td></tr></table></body></html>